Computed Tomography of Esophagus

A low-density, high-viscosity barium paste ingested just before computed tomography (CT) scanning aids in outlining the esophageal lumen.A negative oral contrast agent, consisting of a vanilla-flavored paraffin emulsion, has been used during helical CT to evaluate chemotherapy of esophageal cancer  but is not widely
employed.
Sufficiently rapid image acquisition of a region in question during a single breath-hold is feasible with multislice helical CT, allowing two-dimensional (2D) and 3D reconstructions.
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